ah, i missed that piece of information. no, i'm using vanilla jpeg here.
quite possible that we use the library slightly wrong and one of the
implementations handles it gracefully?
-jo
On Sun, Jul 7, 2013 at 11:11 PM, Bruce Guenter <br...@untroubled.org> wrote:
> On Mon, Jun 24, 2013 at 01:19:08PM +0200, johannes hanika wrote:
> > seems to crash in libjpeg.so.8..?
>
> I ran it through gdb and it crashes in:
>
> #0 0x00007ffff4353adf in encode_one_block (actbl=0x7fffd42bf040,
> dctbl=0x7fffd42ac040, last_dc_val=-261, block=0x7fff4c1ee9b0,
> state=0x7fffe96f8670)
> at jchuff.c:557
> #1 encode_mcu_huff (cinfo=0x7fffd4003d88, MCU_data=0x7fffd42a8c40) at
> jchuff.c:617
> #2 0x00007ffff4350af6 in compress_output (cinfo=0x7fffd4003d88,
> input_buf=<optimized out>) at jccoefct.c:381
> #3 0x00007ffff43503b4 in jpeg_finish_compress
> (cinfo=cinfo@entry=0x7fffd4003d88)
> at jcapimin.c:183
> #4 0x00007fff600a501d in write_image (jpg_tmp=0x7fffd4003a00,
> filename=0x7fffe970bbe0 "/share/photos/2013/06-17/a550-13801_01.jpg",
> in_tmp=0x7fff262c9010, exif=0x7fffe96fbb20, exif_len=44108,
> imgid=7002) at /home/bruce/dev/darktable/src/imageio/format/jpeg.c:387
> 387 jpeg_finish_compress (&(jpg->cinfo));
>
> So, yes, it crashes in libjpeg, in the jpeg_finish_compress routine.
> Examining "state" in encode_one_block shows:
>
> $13 = {next_output_byte = 0x10101010 <Address 0x10101010 out of bounds>,
> free_in_buffer = 140736752946240, cur = {put_buffer = 140736752944730,
> put_bits = 662, last_dc_val = {0, 1853654468, -708528795, 12}}, cinfo
> = 0xffffffcfffffff77}
>
> That looks like something clobbered the next_output_byte pointer with some
> image data or something, but I can't tell what.
>
> > fwiw i can export on ubuntu 13.04 just
> > fine (100s of images not a problem). darktable links to the same dso.
>
> Just to verify, you are using libjpeg-turbo8-1.2.1-0ubuntu2?
>
> --
> Bruce Guenter <br...@untroubled.org> http://untroubled.org/
>
>
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